Dual wheel caster



FIG. 1 is a plan view of a dual wheel caster showing my new design.

FIG. 2 is a side elevational view from one side, the opposite side being identical.

FIG. 3 is an elevational view from the left side of FIG. 1.

FIG. 4 is an elevational view from the right side of FIG. 1. 

The ornamental design for a dual wheel caster, as shown and described. 